Psoromic acid is a β-orcinol depsidone with the molecular formula C18H14O8.

Psoromic acid inhibits herpes simplex viruses type 1 and type 2.

[2] Furthermore, it inhibits the RabGGTase.

[3] Psoromic acid occurs in antarctic lichens.

This article about a heterocyclic compound is a stub.